// 定义枚举类型Color
/*
    enum TypeName{
        key1 = [value1],
        key2 = [value2],
        .... 
    };
*/
#include <iostream> //Tab
using std::cout;
enum ColorType{
    red = 1,
    green = 1,
    yellow = 6,
    purple = 5,
    grey,
};

int main(){
    // 存储 true = 1 或者 false = 0 二元值的类型
    bool value; // 1 bit: 1 or 0
    int colorType = ColorType::grey;
    cout<<colorType<<ColorType::yellow;
    return 0;
}